Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Errico Presutti"'
Autor:
Errico Presutti
Publikováno v:
Rendiconti di Matematica e delle Sue Applicazioni, Vol 27, Iss 1, Pp 17-36 (2007)
These are notes of a Colloquium given on May 30, 2005, at the Mathematical Department of the University of Roma La Sapienza. The notes based on researches of the author in statistical mechanics are intended to underline contiguities with other discip
Externí odkaz:
https://doaj.org/article/1244b4a20ffb44ebaceec5e5bed127a1
We derive macroscopic equations for a generalized contact process that is inspired by a neuronal integrate and fire model on the lattice $\mathbb{Z}^d$. The states at each lattice site can take values in $0,\ldots,k$. These can be interpreted as neur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16c54e37e9fe8224934542e05261bcae
https://hdl.handle.net/11697/200819
https://hdl.handle.net/11697/200819
Publikováno v:
Journal of Statistical Physics, 180 (2020)(1-6)
We study the Ginzburg-Landau stochastic models in infinite domains with some special geometry and prove that without the help of external forces there are stationary measures with non zero current in three or more dimensions.
35 pages
35 pages
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8a0e3cc7bc98bd912507b2f852b4337
https://doi.org/10.1007/s10955-019-02427-9
https://doi.org/10.1007/s10955-019-02427-9
Publikováno v:
Journal of Statistical Physics
Journal of Statistical Physics, Springer Verlag, 2019, 175 (1), pp.203-211. ⟨10.1007/s1095⟩
Journal of Statistical Physics, Springer Verlag, 2019, 175 (1), pp.203-211. ⟨10.1007/s1095⟩
International audience; We characterize the non equilibrium stationary states in two classes of systems where phase transitions are present. We prove that the interface in the limit is a plane which separates the two phases.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48d3b85afcbff9699882fde2df42a0ad
https://doi.org/10.1007/s10955-019-02250-2
https://doi.org/10.1007/s10955-019-02250-2
We study the stationary measures of Ginzburg-Landau (GL) stochastic processes which describe the magnetization flux induced by the interaction with reservoirs. To privilege simplicity to generality we restrict to quadratic Hamiltonians where almost e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20b790675e20caf80d1d81cd11e732aa
http://arxiv.org/abs/2103.03909
http://arxiv.org/abs/2103.03909
Publikováno v:
Journal of Statistical Physics
Journal of Statistical Physics, Springer Verlag, 2019, ⟨10.1007/s10955-019-02467-1⟩
Journal of Statistical Physics, Springer Verlag, 2019, 178, pp.869-892. ⟨10.1007/s10955-019-02467-1⟩
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Journal of Statistical Physics, Springer Verlag, 2019, ⟨10.1007/s10955-019-02467-1⟩
Journal of Statistical Physics, Springer Verlag, 2019, 178, pp.869-892. ⟨10.1007/s10955-019-02467-1⟩
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
In this paper we present a simple microscopic stochastic model describing short term plasticity within a large homogeneous network of interacting neurons. Each neuron is represented by its membrane potential and by the residual calcium concentration
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9532a5a39f03b8afc4bace4ca8be5669
https://hal.archives-ouvertes.fr/hal-02420672
https://hal.archives-ouvertes.fr/hal-02420672
Publikováno v:
Journal of Statistical Physics. 167:1081-1111
We present some computer simulations run on a stochastic cellular automaton (CA). The CA simulates a gas of particles which are in a channel,the interval [1, L] in $$\mathbb Z$$ , but also in “reservoirs” $$\mathcal R_1$$ and $$\mathcal R_2$$ . T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::149ba2689cab1bccea90d7d0ae22014f
https://doi.org/10.1007/s10955-017-1765-3
https://doi.org/10.1007/s10955-017-1765-3
Publikováno v:
Springer Proceedings in Mathematics & Statistics ISBN: 9783030150952
The Branching Brownian Motion (BBM) process consists of particles performing independent Brownian motions in \(\mathbb R\), and each particle creating a new one at rate 1 at its current position. The newborn particles’ increments and branchings are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c65a3b28fa8a8cadcfb7c953a2f06059
https://doi.org/10.1007/978-3-030-15096-9_18
https://doi.org/10.1007/978-3-030-15096-9_18
Autor:
Errico Presutti, Domingos H. U. Marchetti, Luiz Renato Fontes, Immacolata Merola, Maria Eulalia Vares
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
We consider the Ising model on $\mathbb Z\times \mathbb Z$ where on each horizontal line $\{(x,i), x\in \mathbb Z\}$, the interaction is given by a ferromagnetic Kac potential with coupling strength $J_\gamma(x,y)\sim \gamma J(\gamma (x-y))$ at the m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::179c66c772954fdd37866cfd6bd51e06
https://doi.org/10.1007/s10955-015-1307-9
https://doi.org/10.1007/s10955-015-1307-9
We study a system of particles which jump on the sites of the interval $[1,L]$ of $\mathbb Z$. The density at the boundaries is kept fixed to simulate the action of mass reservoirs. The evolution depends on two parameters $\lambda'\ge 0$ and $\lambda
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5152b941ef52e932b1d243444a822df
http://arxiv.org/abs/1705.01825
http://arxiv.org/abs/1705.01825